Efeito da reposição com melatonina no processo de reparo após reimplante dentário em ratos pinealectomizados: análise histomorfométrica

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Identificação de Plasmodium spp. em primatas neotropicais e em anofelinos em municípios da região de São Luís, estado do Maranhão, Brasil

Pós-graduação em Medicina Veterinária - FCAV

Efeitos da terapia a laser associada ou não ao plasma rico em plaquetas na reparação do tecido muscular de ratos

Pós-graduação em Fisioterapia - FCT

Influence of microbiological quality of drinking water in the intestinal morphology of broilers

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Agronomic and chemical characteristics of hybrid corn to ensiling

Our aim was to evaluate agronomic and chemical characteristics of corn hybrids to ensiling. It were evaluated nine corn hybrids (MX 300, RB 9308, 2B655, XB 6012, GNZ 2500, PL6890, PRE 32D10, PRE 22T10 e AG 1051), with three replicates. The higher fresh matter yield were observed in the hybrids PL6890 and PRE 32D10, while the dry matter yield was observed in the hybrid PRE 32D10 (13.43 t ha(-1)). The hybrids PRE 32D10 and PRE 22T10 stood out to present higher percent of leaf in relation to whole plant, while the lower percent of stems was found in the hybrids MX 300, 2B655 and XB 6012, however the higher leaves: stems relation was found in XB 6012 (0.49). There was higher CP content in the hybrid PRE 32D10 (9.10% of DM), while the lower NDF (57.78% of DM) and cellulose content (24.27% of DM) were observed in the hybrid GNZ 2500. The hybrid PL6890 presented higher ADF and lignin contents, the others hybrids had values lower. The lower NDIN content was observed in the hybrid RB 9308, while the lower AIDN content occurred on the hybrid 2B655. The lower buffer capacity was observed in the hybrid 2B655 (0.29). There are some differences on chemical composition among the corn hybrids used in this study, however, it is recommended to use the hybrids MX 300, PL6890 and PRE 32D10 for showing higher dry matter yield, which may reflect in the amortization of silage production costs.

Características morfogênicas e estruturais da Brachiaria brizantha cv. Marandu submetida a diferentes doses de nitrogênio e alturas de resíduos

The objective of this study was to evaluate the rate of leaf appearance, leaf elongation rate, number of green leaves, length of blade and stem of Brachiaria brizantha cv. Marandu under different nitrogen levels and two residue heights. A randomized block design was used in a 4 x 2 factorial scheme, four doses of nitrogen (100, 200, 300 and 400 kg N ha(-1) year(-1)) and two residue heights (5 and 15 cm). There was significant interaction between residue height and nitrogen levels for leaf appearance rate of signal grass, which was influenced negatively and linearly by the residue heights being observed an average reduction of 28.20% from lower to higher residue. There was no interaction between the levels of nitrogen x residue height on the number of green leaves. The dosage that provided the highest stalk in the residue height of 5 cm was of 271.5 kg N ha(-1). An increase of 0.0745 cm tiller(-1) day(-1) for 1 kg of N ha(-1) applied to height of 15 cm of residue was observed. Nitrogen fertilization contributes positively to growth and development of rates of appearance and leaf extension. The management of pasture of Brachiaria brizantha cv. Marandu with 5 cm of residue and fertilization with 100 kg N ha(-1) provided better answer morphogenic traits.

Baixa umidade do solo na eficácia de herbicidas aplicados em pré-emergência

The aim of this study was to evaluate the effect of low soil moisture on the efficacy of applying herbicides ametryn + clomazone, sulfentrazone and tebuthiuron in pre-emergence application submitted to simulated rainfalls at different time intervals after application in control of B. pilosa, C. echinatus and U. plantaginea plants. The experiment was carried out in pots with a capacity of 2.5 L in green-house conditions and experimental design was completely randomized with four replications, arranged in a 3x5 factorial (three herbicides and five rains intervals). The herbicides clomazone + ametryn (Sinerge EC) 5.0 L commercial product (cp) ha(-1), sulfentrazone (Boral 500 SC) 1.2 L cp ha(-1) and tebuthiuron (combine SC) 2.0 L cp ha(-1) were applied in pre-emergence and the precipitation of 20 mm were applied under de pots in five time intervals after the herbicide application (0h, 4h, 8h, 12h and 24hours). Visual evaluations of plants control that emerged plants were realized at 14 and 21 days after treatment application and the plant emergence percentage was calculated. The application of these three herbicides in dry soil then rain within 24 hours after application provided C. echinatus plants emergence, reduced B. pilosa emergency but in the end of the experiment effectively controlled these two species and U. plantaginea plants.

Potencial de lixiviação de herbicidas utilizados na cana-de-açúcar em solos contrastantes

The increased use of herbicides, coupled with inadequate use of these molecules, also increased concerns about the risks of environmental contamination and its effects on humans and animals. The objective of this work evaluates the potential for leaching of herbicides in the crop of cane sugar, in contrasting soils. Used samples were used Psament (NR - sandy texture) and Oxisol Red (LR - clay texture). After application of herbicides ametryne (NR 1.60 kg ha(-1) and LR 2.40 kg ha(-1)), clomazone (NR 0.90 kg ha(-1) and LR 1.10 kg ha(-1)) and diuron (NR 1.60 kg ha(-1) and LR 3.20 kg ha(-1)), were irrigated blades of 0, 20, 40, 60, 80 and 100 mm of water in soil columns. Results indicate that ametryne in NR samples submitted to the handling layer of 5-10 cm when applied blades of 20 and 40 mm of water. It was evident that the clomazone, regardless of the soil, did not exceed 0-5 cm water depths of 0 to 20 mm of water and 5-10 cm deep in the blades above 40 mm of water. With blades up to 80 mm, the diuron leaching only in layers 0-5 cm deep in LR. Conclude that the potential of leaching of diuron and ametryne was influenced by soil texture together with the organic matter content, the same was not true for clomazone.

Distribution of the root system of peach palm under drip irrigation

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Diversidade e sazonalidade de ácaros (Acari) em seringal (Hevea brasiliensis, Muell. Arg.) no Noroeste do Estado de São Paulo

Brazilian southeastern region has soil and climate conditions suitable for the growing of rubber trees, and most part of national yield arises from São Paulo State. The aims proposed for this work were to determine the diversity, the richness and the seasonal occurrence of mites found in a rubber tree crop in a triennial survey with monthly samplings, as well as to estimate the populational density of the major phytophagous species. This study found 74,407 mites from 26 species belonging to 10 families. The phytophagous and predators represented 95.4% and 3.9% of the total abundance, respectively. Twelve species were rare, six accessories and eight constant. The families Phytoseiidae and Tydeidae had the greatest richness (five and four species, respectively). The most numerous species was Calacarus heveae Feres (50,573), with great abundance at the end of rainy season until the beginning of dry season. Among predators, the most abundant were Zetzellia quasagistemas Hernandes & Feres (1,345), Pronematus sp. (455), Zetzellia agistzellia Hernandes & Feres (409) and Euseius citrifolius Denmark & Muma (243). C. heveae had greatest densities on March and April 2003, and Lorryia formosa Cooreman and Tenuipalpus heveae Baker on March and May 2001, respectively. Many stigmaeids were observed in association with colonies of L. formosa preying their eggs and immatures.

Injeção de ar via irrigação por gotejamentos superficial e subsuperficial na cultura da alface

Pós-graduação em Agronomia (Irrigação e Drenagem) - FCA

Viabilidade do recipiente biodegradável na produção de mudas florestais nativas

Pós-graduação em Ciência Florestal - FCA

Análise dos indicadores biométricos e nutricionais da cultura da alface (Lactuca sativa L.) irrigada com água tratada magneticamente utilizando modelagem fuzzy

Pós-graduação em Agronomia (Irrigação e Drenagem) - FCA

Características químico-mineralógicas e cerâmicas da matéria-prima utilizada pelo polo cerâmico de Rio Verde de Mato Grosso, MG

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Diversidade e sazonalidade de ácaros (Acari) em seringal (Hevea brasiliensis, Muell. Arg.) no Noroeste do Estado de São Paulo

A Região Sudeste do Brasil apresenta aspectos edafo-climáticos favoráveis para o plantio e desenvolvimento da seringueira, sendo o estado de São Paulo o maior produtor nacional de látex. Este trabalho teve como objetivos determinar, através de coletas mensais durante três anos de estudo, a diversidade, a riqueza de espécies e a sua sazonalidade, bem como realizar estimativas de densidade populacional das principais espécies de ácaros presentes nas folhas. Todos os ácaros foram montados em lâminas de microscopia, totalizando 74.407 indivíduos, de 26 espécies pertencentes a 10 famílias. Os fitófagos representaram 95,4% do total de indivíduos coletados e os predadores 3,9%. Doze espécies foram consideradas acidentais, seis foram acessórias e oito constantes. Apresentaram maior número de espécies as famílias Phytoseiidae (cinco) e Tydeidae (quatro). A espécie mais abundante foi Calacarus heveae Feres (50.573), com maior abundância nos meses correspondentes ao término da estação chuvosa e início da estação seca na região. Dentre os predadores, a mais abundante foi Zetzellia quasagistemas Hernandes & Feres (1.345), seguida por Pronematus sp. (455), Zetzellia agistzellia Hernandes & Feres (409) e Euseius citrifolius Denmark & Muma (243). C. heveae apresentou maior densidade populacional em março e abril de 2003, e Lorryia formosa Cooreman e Tenuipalpus heveae Baker em março e maio de 2001, respectivamente. Muitos estigmeídeos foram observados associados a agrupamentos de L. formosa predando seus ovos e estágios imaturos.